00:01
Okay, so this new problem, we have x plus 1 over 2 minus x.
00:13
Okay, and we're trying to find what happens when we plug in 5i.
00:21
Okay, so if you've seen my videos before, what i like to do is rewrite the polynomial.
00:28
But instead of x, i'm going to put parentheses.
00:37
Okay, and then so i plug in my 5i everywhere i laid out one of those parentheses or whatever.
00:42
Expression i'm plugging in.
00:45
Okay, so far, so good.
00:47
I'm going to need to create a new slide for this.
00:52
So we have 5i plus 1, okay, which is, i don't like that order because usually you do real before imaginary.
01:04
So i'm going to change that around a little bit.
01:07
So we got one plus 5i over 2 minus 5i.
01:12
Now one of the rules about complex numbers is you cannot divide by complex number...